Copper and Copper Alloys CuZn39Pb3 (OF 2358)DIN EN 12164: Bars for machining DIN EN 12165:...

Copper & Copper Alloys CuZn39Pb3 (OF 2358) EN-no.: CW614N

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of 5 no responsibility is taken for the correctness of this information 02/2014

Copper and Copper Alloys CuZn39Pb3 (OF 2358)




Cu Zn Pb Sn Fe Mn Ni Al Si As Co Cr Others

min. 57.0 Rem. 2.5 - - - - - - - - - - max. 59.0 - 3.5 0.3 0.3 0.02* 0.2 0.05 - - - - 0.2 incl.*

Applications

CuZn39Pb3 is used for hot formed and machined parts. The alloy OF 2358 is suitable for use in drinking water. The alloy OF 2358 is according to the specification DIN 50930-6 for fittings and connecting tubes. Examples of application: Machined parts for construction, electrics, architecture and use in drinking water Major alloy for die-forged parts Cages for rolling bearings

Physical properties At rrom temperature Density 8.4 g/cm3 Electrical conductivity 14.6 MS/m 25.2 % I.A.C.S Heat conductivity 113 W/(m*K) Heat capacity 377 J/(kg*K) Coefficient of thermal expansion 21.4 10-6/K Young’s modulus 96 GPa Melting range 880-895 °C

Microstructures The microstructures consist of a mixture of α- and β-phase depending on the history of deformation, cooling and heat treatment. Pb is insoluble, it forms fine precipitates in the brass matrix.




Consignment and measurements

Strength conditions

Spec./ DIN EN

Condition Yield strength

Rp0.2 [MPa]

Tensile strength Rm

[MPa]

Elongation at break A

[%]

Brinell-Hardness

HBW 2.5/62.5

12164/12165/ 12167/12420/ 12168/12449

M ** ** ** **

12164/12167/ 12168 R360

≤320 ≥360 ≥20 /

12449 ≤250 ≥360 ≥25 / 12164/12167/ 12168 R430

≥220 ≥430 ≥10 /

12449 ≥250 ≥430 ≥12 / 12164

R500

≥350 ≥500 ≥5 / 12167 ≥350 ≥500 ≥8 / 12168 ≥350 ≥500 ≥8 / 12449 ≥370 ≥500 ≥8 / 12420 H075 (≥110) (≥340) (≥20) ≥75 12165

H080 / / / 80-170

12420 (≥120) (≥360) (≥20) ≥80 12449 H085 / / / 80-115 12164/12167/ 12168 H090 / / / 90-125

12164/12167/ 12168 H110 / / / 110-160

12449 H115 / / / 110-145 12164/12167/ 12168 H135 / / / ≥135

12449 H140 / / / ≥135 ** Condition M = without specified properties-as manufactured ( ) The numbers are not requirements of the standard - they are only for information / No requirements in standard or not applicable

Specified dimensions for bars, pre-material for forging and forgings R/V Round rods/Polyhedral rods VS-R/V Pre-material for forging round/polygonal RS Rectangular bar

DIN EN 12164: Bars for machining DIN EN 12165: Pre-material for forging DIN EN 12167: Profiles, rectangular bars DIN EN 12168: Hollow bars for machining DIN EN 12420: Forgings DIN EN 12449: Seamless tubes




Profiles and rectangular bars can be delivered up to 180 mm in extruded and up to 130 mm in cold drawn condition. Pre-material for forging and forgings is dependent upon each individual case. Specified dimensions for hollow bars and round tubes Further dimensions for hollow bars and round tubes are available on request. Others conditions Rods in others strength and hardness conditions, and dimensions, and tubes are available on request.

Processing Shaping Machinability very good (100)

(CuZn39Pb3=100%) Cold working poor Hot working very good Hot working temperature 650-800°C Connecting Resistance welding average Shielded welding poor Brazing average Soldering very good Surface treatment Mechanical polishing very good Electrolytic polishing poor Galvanisation very good Tin coating very good

Heat treatment Soft annealing 450-600°C Stress relieving 200-380°C

Special notes and remarks There is a risk of stress corrosion cracking (SCC) in case of concurrent presence of mechanical stress and corrosive media (in particular ammoniac atmosphere).

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Copper and Copper Alloys CuZn39Pb3 (OF 2358)DIN EN 12164: Bars for machining DIN EN 12165:...

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